47results about How to "Easy to form mass production" patented technology

The invention discloses a method for continuously manufacturing 3-CCM (three Catalyst Coated Membranes) of a fuel cell. The method is characterized by comprising the following step of: under a condition that a protective membrane is adhered on one side of a proton exchange membrane, compositing a catalyst on the other side of the proton exchange membrane by utilizing a process manner, such as a direct coating manner, a printing manner, an indirect coating manner, a spray coating manner, a slit extrusion manner and a physicochemical deposition manner. The method for continuously manufacturing the 3-CCM of the fuel cell, disclosed by the invention, has the advantages that: (1) coil-to-coil easy continuous batch manufacturing can be realized; (2) the size precision is better and composite defects are fewer in the manufacturing procedure because the proton exchange membrane adhered with the protective membrane has excellent size stability in a compositing process of a catalyst layer and the proton exchange membrane; and (3) the manufacturing of the 3-CCM of the fuel cell with slotted catalyst layer can be continuously realized. When the 3-CCM are manufactured by utilizing the method for continuously manufacturing the 3-CCM of the fuel cell, disclosed by the invention, batch production is easier, and the yield is higher at the same time.

The invention aims at disclosing a thin-film pressure sensor adopting titanium oxynitride as a strain material and a manufacturing method thereof. The thin-film pressure sensor comprises a stainless-steel elastic substrate, wherein the stainless-steel elastic substrate is provided with a core body thin-film layer; the core body thin-film layer comprises an insulating layer, a strain resistance layer, an electrode, a temperature-measuring resistance layer and a passivating layer; and the insulating layer, the strain resistance layer, the electrode, the temperature-measuring resistance layer and the passivating layer are deposited on the stainless-steel elastic substrate by a vacuum deposition method. Compared with the prior art, the invention has the advantages that a core body of the thin-film pressure sensor prepared by using thin film as the strain resistance layer has good heat stability, low cost and high production efficiency, measurement of temperature and pressure parameters can be realized simultaneously, the core body is suitable for use under high-temperature and severe environments, and the purpose of the invention is achieved.

The invention discloses a flexible electricity generation power supply and a flexible display screen. The electricity generation power supply comprises a flexible substrate and multiple piezoelectric film electricity generation devices deposited on the flexible substrate, wherein each piezoelectric film electricity generation device comprises a lower electrode deposited on the flexible substrate, a flexible piezoelectric film deposited on the lower electrode, and an upper electrode deposited on the flexible piezoelectric film, and the upper electrode on each piezoelectric film electricity generation device is connected with the corresponding lower electrode in series. The flexible display screen comprises the flexible electricity generation power supply and multiple display units located on the flexible substrate, wherein the multiple display units are electrically connected with the flexible electricity generation power supply. The flexible electricity generation power supply solves the technical problem of flexible power supply of the flexible display screen, is matched with the flexible display screen, and can provide a usable power supply for the display screen in the absence of illumination.

The invention provides a method for preparing a cyclic dipeptides compound as well as an application thereof, the method is to obtain the cyclic dipeptides compound by fermenting, separating and purifying separated endophytic fungi with the Collection No. of CGMCC2094, the compound can effectively induce the system resistance of crop and obviously promote the growth of roots, stems and leaves of plants at different seedling stages, and can enhance the quality of seedlings and promote the formation of strong seedlings, and the method has advantages of convenient and feasible process, non environmental pollution, short period, low cost of materials, easy formation of large-scale batch production and low production cost.

The invention discloses a sandwich-type piezoelectric touch screen which comprises a substrate and an outer positioning frame for fixing the substrate. The reverse side of the substrate is sequentially provided with an upper flexible thin film, a sheet-type piezoelectric element and a lower flexible thin film; array-type thin film conductive circuits are arranged on the surfaces of the upper flexible thin film and the lower flexible thin film; an upper electrode and a lower electrode are respectively arranged on the upper and lower surfaces of the sheet-type piezoelectric element; and the piezoelectric element has high piezoelectric performance (particularly, the performance of currently common lead-containing piezoelectric ceramics is dozens of times higher than the performance of a piezoelectric thin film with the highest performance), however, the screen generates the small deformation by applying a small force to the screen so as to implement output of a large electric signal. The invention can well solve the problem of insufficient sensitivity of the piezoelectric touch screen. The sandwich-type piezoelectric touch screen disclosed by the invention not only has high sensitivity, but also has high stability and reliability. The piezoelectric touch screen has the characteristics of structural innovation, low manufacturing cost, excellent performance and the like.

A fiber grating wavelength measuring system consists of the DFB laser, the temperature tuning circuit, the current tuning circuit, the photo-electricity modulator, the modulating circuit, the photo-electricity detector module, the high-speed sampling circuit, the microprocessor, the display part, the branching unit and the connecting fiber. The invention is: the DFB laser measures the wavelength of the fiber grating sensor that not only reduces the cost, but also uses to examine temperature, stress of building, emergency measurement, and the entire situation fitting for the measurement of the fiber grating sensor.

The invention discloses a medical auxiliary lithagogue system, which comprises a pedestal, a shedding tappet and a seat or a sickbed which are arranged on the pedestal, a vibration treatment device which is arranged on the seat or the sickbed and has a structure corresponding to the back curve of the human body or is arranged on the shedding tappet and has a structure corresponding to the foot bottom curve of the human body, a vibration driving mechanism driving the vibration treatment device to continuously vibrate in a preset vibration mode, and a control unit controlling and adjusting the vibration mode of the vibration driving mechanism and the state of a vibration switch. Both right and left sides of the seat or the sickbed or the upper front part of the shedding tappet is provided with a handrail. supporting components supporting the handrails and the handrails form a standing treatment device. The seat or the sickbed or the periphery of the shedding tappet is provided with a control panel connected with the control unit. The invention has reasonable design, simple and compact structure, low treatment cost, simple and convenient use, safe and reliable operation and good curative effect, makes up for defects in the existing upper urinary tract calculi treatment, and improves the treatment effect of the upper urinary tract calculi to a greater degree.

An automatic ruler for displaying plant growth comprises an identification base and an iron scale ruler. The automatic ruler is characterized in that a hole used for viewing scales is arranged in the center of the identification base, permanent magnets and guide rails are arranged behind the identification base, the iron scale ruler is sealed by a layer of transparent plastic, the permanent magnets attract the iron scale ruler and attach to the back of the identification base, and the iron scale ruler with the layer of transparent plastic slides transversely. According to this arrangement, the use of nails to fix and energy consumption can be saved. The automatic ruler has the advantages of being simple in structure and low in cost, so that mass production can be achieved.

The invention relates to an improved automobile clutch booster, namely, the cross-sectional area of a piston rod becomes small, so that the required effective area of a large piston when the large piston does work is increased, the resistance is also reduced, and the power of the clutch booster can be increased by 10% on the basis of the original product. The phenomena of sticking, powerless property and non-thorough separation of the clutch booster during the use can be avoided. In addition, wear rings containing lubricating grease are increased at the parts which are adjacent to leather cups in the clutch booster, so that all the leather cups can regularly work under a lubricational state, and the service life of the clutch booster is greatly prolonged. Simultaneously, the mounting position and the way of a valve seat are also changed, the operation is easy, and potential risks are also eliminated.

The invention discloses a method to prepare a magnesium boron oxygen nano thread, adopting a sol-gel method, and the steps as follows: 1) prepare a solution by using 99% analytical magnesium nitrate, boric acid and citric acid in mole ratio of 1 to 1 to 1 - 1 to 10 to 10, drying at 10-500 deg.C so as to obtain a gelatinous product; 2) baking the product at 100 deg.C-1300 deg.C for 5 minutes-200 hours, and generating a white powdery substance; 3) dissolving the white powdery substance in water, centrifuging and eliminating soluble B2O3, and making the magnesium boron oxygen (MgB4O7) nano thread. It has simple process, easy to form volume-production, and the made nano thread has excellent performance. By organically combining the nano thread with other material blocks, it is hopeful to improve the mechanical property of ceramic material, and enhance the flexibility and strength of ceramic material.

The invention relates to the technical field of producing and machining of gun steel products, in particular to a heat treatment method of an SLM molding gun steel product. The heat treatment method includes the following steps of firstly, coating the surface of the SLM molding gun steel product with a layer of high-temperature-resistant anti-oxidizing paint, then putting the gun steel product into a vacuum atmosphere furnace, vacuumizing the furnace until the vacuum degree is 0.1-0.2 MPa, and injecting argon with the purity of 99% or above until the vacuum degree is increased to 0.01-0.02 MPa; secondly, performing preheating; thirdly, performing quenching treatment; fourthly, rapidly cooling SLM molding gun steel through an air conditioner; and fifthly, performing tempering treatment, wherein the SLM molding gun steel product is put into the vacuum atmosphere furnace again, the temperature is gradually raised to 540 DEG C from the original 0 DEG C, and the temperature is raised at therate of 30 DEG C per minute. The anisotropy of mechanical performance of the SLM molding gun steel product is eliminated, the toughness is improved, the internal stress is reduced, the comprehensivemechanical performance of the SLM molding gun steel product is strong, meanwhile conventional devices are adopted in the process, the technological process is simple, operation is simple, and batch production can be easily formed.

The present invention discloses an automotive brake hub. It is characterized by that the external layer of said brake hub is a high-strength cylindrical external cast-iron, so that said invention is not easily broken, the external surface of said external cast-iron is made into corrugated form, so that its radiating area is enlarged, the thickness of semi-curved internal cast-iron matched with radian of said cylindrical external cast-iron is thiner, so that the honeycomb cracks due to internal stress and thermal fatigue can be reduced, and the service life of said invention also can be raised.

The invention discloses a biomass coated oil-proof paper prepared by gluing a nanocellulose-reinforced alginate / starch-based composite oil-proof film and a paper substrate, and a production technologythereof. The production technology comprises the following steps: preparing nanocellulose by chemical pretreatment, acid hydrolysis, TEMPO catalytic oxidation, ultrasonic treatment, mechanical crushing or a combination thereof; producing the composite oil-proof film by using starch and sodium alginate as an oil-proof film forming substrate, glycerin as a plasticizer and nanocellulose as a reinforcing component; and casting the composite oil-proof film material to form the film, and bonding the film and the paper substrate to produce the biomass coated oil-proof paper. The nanocellulose, alginate and starch have good compatibility when compounded, and the addition of the nanocellulose makes the alginate and starch closely cross-linked, so the strength, the oil resistance and the thermal stability of the alginate / starch-based composite oil-proof film are effectively improved. The biomass coated oil-proof paper produced by casting film formation and bonding has a smooth surface, can be firmly combined, has no crease phenomenon, has no delamination, and can be naturally degraded.

The invention discloses a heating non-combustion smoking set; the heating non-combustion smoking set comprises a shell with a hollow cavity, a circuit assembly and a circuit board supporting component, wherein the circuit assembly comprises a battery and a flexible circuit board extending along the hollow cavity; one end of the flexible circuit board is provided with a first circuit area; the battery is electrically connected with the first circuit area; the circuit board supporting component is arranged in the hollow cavity and is matched with the inner wall of the hollow cavity; the circuitboard supporting component extends along the axial direction of the battery; and one end of the battery abuts against one end of the circuit board supporting component, and the first circuit area is fixed on the circuit board supporting component. By virtue of the circuit board supporting component, the positioning support can be formed at one end of the flexible circuit board, the abutting surface can be provided for the battery, the original connection relation and the fixing relation between the flexible circuit board and the battery can be kept in the assembling process, and the whole assembling process is more convenient, fast and efficient.

The invention discloses a television stand capable of adjusting a visual angle, which comprises a base, an intermediate, a television support, a longitudinal angle adjuster, a horizontal angle adjuster and a control circuit board, wherein the lower part of the base is provided with a cantilever stretching forwards, the front end of the protracting cantilever is provided with a cantilever hinge support, the intermediate comprises a framework and a pin roll, the pin roll is arranged at the front end of the framework, the lower part of the front end of the framework is provided with a framework hinge support, the framework hinge support at the lower part of the front end of the framework is articulated with the cantilever hinge support at the front end of the cantilever, the longitudinal angle adjuster comprises a motor, a crank and a connecting rod, the connecting rod is articulated with the base, the horizontal angle adjuster comprises a motor, a swing sleeve, a crank and a connecting rod, the connecting rod is articulated with the swing sleeve, the swing sleeve is articulated with the framework of the intermediate through the pin roll, and the television support is fixed on the swing sleeve. The invention has the advantages of reasonable stress, simple structure, small volume, attractive appearance, convenient assembly and easy batch production.

The present invention relates to a gamma-linolenic acid fermentation production process for producing gamma-linolenic acid. The technological process includes the following steps: screening gamma-linolenic acid being in spore plant and plant seed oil as inoculum for culture and fermentation, slant culture of inoculum is vibration culture for 2-5 days at 25-30 deg.C, in first stage fermentation tank making fermentation for 1-3 days at 25-30 deg.C, in second stage fermentation tank making fermentation for 2-5 days at 25-29 deg.C, in third stage fermentation tank making fermentation for 2-5 daysat 25-30 deg.C, in fourth stage fermentation tank making fermentation for 5-7 days at 25-30 deg.c, then filtering thallus anjd dehydrating, vibration drying at 50-70 deg.C, finally pulverizing and sieving with 120-200 meshes.

The invention relates to a transmission speed-change unit, which comprises a power driven shaft and a transmission component engaging the drive shaft, wherein the transmission component is a bearing mounted on the supporting frame, the outboard of the bearing co-operates the bearing sleeve by friction, the bearing sleeve is connected with the working device. The advantages of the invention are low noise of bearing transmission, better abrasion-resistance, and longer service life.

The invention belongs to the technical field of organic-inorganic agricultural product fertilizers and relates to a functional high-concentration humic acid-containing water soluble fertilize and a preparation method thereof. The functional high-concentration humic acid-containing water-soluble fertilize comprises 5-20 percent by weight of urea, 5-10 percent by weight of water soluble phosphate fertilizer, 10-30 percent by weight of water-soluble potassium fertilizer, 1-5 percent by weight of water soluble chelated trace element, 5-10 percent by weight of water soluble mineral source potassiumfulate, 0.1-0.5 percent by weight of functional fertilizer synergist and the balance of water. The functional fertilizer synergist comprises cyclic dipeptide, and the cyclic dipeptide has a structural formula in the Specification. The water soluble fertilize provided by the invention can promote the enrichment of soil rhizosphere microorganisms, promote the root growth and improve the fertilizerutilization rate.

The invention relates to a hemispherical magnetic pole electro-permanent magnet lifter capable of attracting curved surface workpieces, comprising a bottom plate made of low-carbon steel, on which a reversible magnet is installed, the outer ring of the reversible magnet is fitted with a coil, and the top of the reversible magnet is There are multiple armatures, the main magnet is embedded between the armatures, the non-magnetic metal plate is packaged on the side of the bottom plate and the armature, resin is poured between the reversible magnet, the coil and the main magnet, and the feature is: the top of each armature Both are fixed with hemispherical magnetic poles that can adapt to the needs of different curvature surfaces. The advantages are: adapting to the needs of workpieces with different curvatures and surfaces, the workpiece can be firmly held without additional auxiliary equipment such as manipulators, and the number of magnetic chucks or permanent magnet lifters with various specifications is reduced, which reduces the production cost of users. It adopts a four-pole adsorption structure with strong suction, which is suitable for absorbing both concave and convex surfaces; safe and reliable operation, energy saving, maintenance-free, long service life, and easy to form mass production.

The present application discloses a heat-not-burn smoking appliance, which includes a shell with a hollow cavity, and a battery is arranged in the hollow cavity, and the smoking appliance also includes a circuit assembly, and the circuit assembly includes a flexible circuit board extending along the hollow cavity , the flexible circuit board has: a positive terminal and a negative terminal for connecting the battery; a first circuit area, a second circuit area, and a connection area for connecting the first circuit area and the second circuit area; wherein, the first circuit area A circuit area and a second circuit area are both deflected toward the center of the hollow cavity relative to the connection area; the connection area has a length not shorter than the battery, and at least part of the connection area is attached to the on the outer surface of the battery. The present application uses a flexible circuit board to connect components, and both ends of the flexible circuit board can be deflected toward the central area of ​​the casing, thereby reducing the size of the smoking set to a large extent, which is conducive to the development of the smoking set in the direction of miniaturization.

A multifunctional sprayer for shower bath is composed of an external fluid pressure regulating unit consisting of hexagonal base, fastening ring, pressure regulating valve, and O-shaped ring, a boosting unit consisting of helical ball, curved helical body, bowel pad and upper casing, and a spray body consisting of internal plug, horn body, lower casing and bottom cover. It has pressure regulating, boosting, water saving massage and oxygen enriching functions.

The invention relates to an improved unpowered type sewage biological purification device comprising a mixed flow expanded-bed anaerobic biological treatment unit and a water-dropping aeration unit, wherein the mixed flow expanded-bed anaerobic biological treatment unit and the water-dropping aeration unit are both arranged in a closed glass steel cylindrical tank body; the mixed flow expanded-bed anaerobic biological treatment unit comprises a biological filter which is arranged at the lower middle inside the glass steel cylindrical tank body; the upper end of the biological filter is provided with a necking mouth; the outer edge of the necking mouth is provided with the water-dropping aeration unit; the necking mouth arranged on the upper end of the biological filter is internally provided with a filtering screen; anaerobic suspended fillers are arranged below the filtering screen; and the bottom of the biological filter is provided with an umbrella-type water distributor. The invention has small occupying area and a difficultly corroded steel shell, enhances the anaerobic reaction efficiency due to the large biofilm formation amount of the anaerobic suspended fillers, has poor water distribution uniformity of a water inlet pipe and a water distribution pipe, is convenient to maintain by adding a sludge suction device, can realize that a whole system can be used when connected after the anaerobic suspended fillers are loaded because the anaerobic suspended fillers can be processed with pre-biofilm formation, is easy to realize the standard and batch production and popularize and apply due to water-dropping aeration without power consumption.

The invention discloses a single-sided electrode polycrystalline silicon thin film solar cell and a manufacturing method thereof. The structure of the solar cell is characterized in that an ultra-white glass is taken as a substrate, a layer of thin film which plays a part in blocking and passivation is arranged on the substrate, a layer of polycrystalline silicon thin film is arranged on the aforementioned thin film, grate-like or comb-like PN junctions are arranged on the polycrystalline silicon thin film, and extraction electrodes having a shape which is adapted to the shape of the PN junctions are arranged at top. The manufacturing steps comprises: cleaning the glass substrate, and planting the blocking and passivation layer thin film by using a vacuum plating method and planting the polycrystalline silicon thin film by using a liquid phase epitaxial method or the vacuum plating method on the glass substrate successively; then preparing the grate-like or comb-like PN junctions on the polycrystalline silicon thin film through thermal diffusion, ion implantation, laser doping and other methods; and finally printing the extraction electrodes, and performing sintering to complete the process. The PN junctions are in a grate-like or comb-like arrangement, so the effective PN junction length is increased compared with conventional structures, and conversion efficiency is improved. At the same time, the polycrystalline silicon layer is easily to be thinned, and mass production is easily realized.

The invention relates to an oiling-free automobile transmission shaft which comprises a shaft tube, a weld yoke, a flange yoke and a universal joint pin. The oiling-free automobile transmission shaft is characterized in that needle rollers are distributed on the inner wall of a shaft sleeve along the circumferential direction; a double-lip elastic retainer ring and a wearing ring are sequentially arranged at one end of the shaft sleeve, which is close to the center of the universal joint pin; the wearing ring is located between the double-lip elastic retainer ring and the needle rollers; an oil storage device is arranged on the universal joint pin; a return spring, a piston and a seal ring are arranged inside the oil storage device; the piston is arranged inside a shell of the oil storage device; the seal ring is arranged at the side face of the circumference of the piston; the return spring is arranged between the piston and the top of the shell of the oil storage device; an oil storage cavity is arranged below the piston; a through hole is arranged inside the universal joint pin; and the through hole is communicated with the inner cavity of the shaft sleeve and the oil storage cavity. The oiling-free automobile transmission shaft is easy to manufacture, low in cost, safe and reliable and has obvious using effect.

It was a new technique using gama-linolenic acid in the plant or Cunninghamellaechinulata as culture and producing dry fungus powder containing gama linolenic acid. There were the following characteristic: a) culture was inducted and filtered in the culture medium; b) slant culture of the strain was for 2-5 days at 25-30deg.C ; c) fermented for 1-3 days in the single stage fermentation can at 25-30deg.C; d) fermented for 2-5days in the second stage fermentation can at 25-29deg.C ; e) fermented for 2-5 days in the third stage fermentation can at 25-30deg.C ; f) fermented for 5-7 days in the fourth stage fermentation can at 25-30deg.C; g) the mycelium was filtrated and dehydrated to and then was shaked to dry at 50-70deg.C ; h) the product was crushed and sifted out from120-200 mu ,then it was enclosed in asepsis and enter warehouse.

The invention relates to a mixed flow expanded bed anaerobic microorganism filter tank, comprising a casing which is a cylindrical glass fiber reinforced plastic tank body. A biofilter is arranged at the lower-middle part of the cylindrical glass fiber reinforced plastic tank body; the upper end of the biofilter is provided with a shrink mouth; the outer edge of the shrink mouth is provided with a drop-aeration device; a mesh is arranged in the upper port of the biofilter; anaerobic suspended filler is arranged below the mesh; a water distributor is in a shape of an umbrella; a water inlet pipe and a mud sucking pipe longitudinally pass through the water distributor; and the upper ends of the water inlet pipe and the mud sucking pipe are respectively penetrate through the upper part of the cylindrical glass fiber reinforced plastic tank body. The filter tank has small occupied area, difficult erosion of the steel casing, large amount of biofilm formation, increase of anaerobic reaction efficiency, good water distribution evenness of the water inlet pipe and a water distributing pipe and convenient maintenance by additionally arranging a mud sucking device; the anaerobic suspended filler can be used for precoating treatment to realize the instant use of the whole system after loading; and the drop-aeration does not have power consumption, so that standardization and batch production is easy to realize, and the filter is easy to popularize.

The invention discloses a process for producing dry bacterial powder which contains gamma-linolenic acid, comprising the following steps of screening strain, inclined surface vibrating culture, multi-stage fermentation, filtering, dehydration, drying, crushing and packaging. Further, the improvement of the invention is that the dying procedure is realized under the condition of -40 to 30 DEG C. The specific process includes that the vibrating drying is proceeded on the condition of 20-30 DEG C and 0.4-0.6 Pascal, or the drying is proceeded by utilizing air of which the moisture degree is 20% to 30% in the manner of vibration under the condition of -40 to 20 DEG C. The invention ensures the survival rate of bacterium through improving the drying art, thereby guaranteeing the quality of gamma-linolenic acid, and improving the quality of the final product. The invention also provides the specific art parameter of each procedure and is capable of further ensuring the achievement of fine-quality products.

The invention discloses granulation equipment for soil fertilizer production in the technical field of fertilizer manufacturing. The granulation equipment comprises a rack, a first motor and a secondmotor, wherein the surface of the rack is fixedly connected with the first motor, a first rotating main shaft is installed in the first motor, one end of the first rotating main shaft is fixedly connected with a first bevel gear, a bed frame is fixedly connected to the surface of the rack, a mixing and proportioning barrel is mounted in the bed frame, and a pelletizing wheel is movably connected to the mixing and proportioning barrel. According to the invention, the granulation equipment is simple in overall structure, convenient to operate and easy to maintain, the production cost is reduced,large-scale production is facilitated, and the production profit is increased; the granulation equipment integrates multiple functions of mixing and crushing raw materials and then granulating, so that the use efficiency of the device is greatly improved; and in the granulation process, production is conducted through a uniform-speed mechanical structure, so that produced particles are uniform insize, and the production quality is improved.

The application discloses a heat-not-burn smoking device, which includes: a shell with a hollow cavity; a circuit component, the circuit component includes a battery and a flexible circuit board extending along the hollow cavity; one end of the flexible circuit board has a a first circuit area, the battery is electrically connected to the first circuit area; and a circuit board support The circuit board support member is disposed in the hollow cavity and is adapted to the inner wall of the hollow cavity. The circuit board support member extends along the axial direction of the battery, and one end of the battery is connected to the inner wall of the hollow cavity. One end of the circuit board support member is in contact with each other, and the first circuit area is fixed on the circuit board support member. The circuit board support member can not only form positioning support for one end of the flexible circuit board, but also provide a supporting surface for the battery, which is conducive to maintaining the original connection and fixation relationship between the flexible circuit board and the battery during the assembly process. Make the entire assembly process more convenient, faster and efficient.

The invention discloses a flexible electricity generation power supply and a flexible display screen. The electricity generation power supply comprises a flexible substrate and multiple piezoelectric film electricity generation devices deposited on the flexible substrate, wherein each piezoelectric film electricity generation device comprises a lower electrode deposited on the flexible substrate, a flexible piezoelectric film deposited on the lower electrode, and an upper electrode deposited on the flexible piezoelectric film, and the upper electrode on each piezoelectric film electricity generation device is connected with the corresponding lower electrode in series. The flexible display screen comprises the flexible electricity generation power supply and multiple display units located on the flexible substrate, wherein the multiple display units are electrically connected with the flexible electricity generation power supply. The flexible electricity generation power supply solves the technical problem of flexible power supply of the flexible display screen, is matched with the flexible display screen, and can provide a usable power supply for the display screen in the absence of illumination.